Today | Weather | Tuesday, June 9, 2026
Active Weather Warnings

Weather in Flagstaff, Arizona

04:48 PM
Now
Sunny Weather
81° F
Feels Like 77°
Precipitation 0 %
Wind 21 mph
UV Index (0 - 11+) 2
Humidity 7 %
Today
Sunny Weather
Day 82°
Night 46°
Precipitation 0 %
Wind 17 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Flagstaff Weather Forecast Updated

43 minutes ago
Last updated on

Air Quality in Flagstaff

NOW
66 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.42 µg/m³
PM10 9.32 µg/m³
O3 0.059 ppm
NO2 0.4 ppb
SO2 0.1 ppb
CO 0.07 ppm
NH3 0.31 µg/m³
NO 0.15 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.52.42 µg/m³
PM109.32 µg/m³
O3116.22 µg/m³
NO20.83 µg/m³
SO20.15 µg/m³
CO85.09 µg/m³
NH30.31 µg/m³
NO0.15 µg/m³

Weather Alerts and Warnings for Flagstaff

Severe Future Possible

Fire Weather Watch

Fire Weather Watch issued June 6 at 9:08PM MST until June 9 at 8:00PM MST by NWS Flagstaff AZ
Jun 8, 11:00 AM Jun 9, 9:00 PM
WHAT: Southwest winds 15 to 25 mph with gusts 40 to 50 mph.
Relative humidity between 8 to 16 percent on Sunday, falling to 5
to 10 percent Monday and Tuesday.

WHERE: Kaibab Plateau, Marble and Glen Canyons, Grand Canyon,
Coconino Plateau, Yavapai County Mountains, Navajo Nation in
Arizona, Little Colorado River Valley, and the Mogollon Rim. This
includes portions of the Apache-Sitgreaves, Coconino, Kaibab, and
Prescott national forests.

WHEN: For the Red Flag Warning, from 10 AM MST /11 AM MDT/ to 8 PM
MST /9 PM MDT/ Sunday. For the Fire Weather Watch, from Monday
morning through Tuesday evening.

IMPACTS: Rapid spread and growth of any new or existing fires.
Fires will have the potential to exhibit extreme fire behavior.
Elevated potential for new fire starts.
+ Read More
Do your part: No open flames or sparks, keep vehicles off of dry grass, properly dispose of cigarette butts, and avoid power equipment that creates sparks. One less spark, one less wildfire. Obey all fire restrictions. To view a map of current fire restrictions, go to wildlandfire.az.gov/fire-restrictions. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life-threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities. Please advise the appropriate officials or fire crews in the field of this Red Flag Warning. A Fire Weather Watch means that critical fire weather conditions are possible. These conditions could promote the rapid spread and growth of wildfires, which could become life-threatening. For forecast updates, go to weather.gov/flagstaff. If you have not packed your go kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. Please advise the appropriate officials or fire crews in the field of this Fire Weather Watch.
Updated: Jun 7, 12:40 PM Source: NWS Alert
Severe Expected Likely

Red Flag Warning

Red Flag Warning issued June 8 at 2:16PM MST until June 9 at 8:00PM MST by NWS Flagstaff AZ
Jun 8, 3:16 PM Jun 9, 9:00 PM
WHAT: Southwest winds 15 to 25 mph with gusts 35 to 45 mph and
relative humidity 8 to 15 percent. Winds will decrease to 5 to 15
mph for a period Monday night before increasing again Tuesday
morning.

WHERE: Kaibab Plateau, Marble and Glen Canyons, Grand Canyon
Country, Coconino Plateau, Northeast Plateaus and Mesas Hwy 264
Northward, Chinle Valley, Chuska Mountains and Defiance Plateau,
Little Colorado River Valley in Coconino County, Little Colorado
River Valley in Navajo County, Little Colorado River Valley in
Apache County, Western Mogollon Rim, Eastern Mogollon Rim, White
Mountains, Black Mesa Area, and Northeast Plateaus and Mesas South
of Hwy 264. This includes portions of the Apache-Sitgreaves,
Coconino, and Kaibab national forests.

WHEN: Until 8 PM MST /9 PM MDT/ Tuesday.

IMPACTS: Rapid spread and growth of any new or existing fires.
Fires will have the potential to exhibit extreme fire behavior.
Elevated potential for new fire starts.
+ Read More
Do your part: No open flames or sparks, keep vehicles off of dry grass, properly dispose of cigarette butts, and avoid power equipment that creates sparks. One less spark, one less wildfire. Obey all fire restrictions. To view a map of current fire restrictions, go to wildlandfire.az.gov/fire-restrictions. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life-threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities. Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.
Updated: Jun 9, 5:04 PM Source: NWS Alert
Moderate Expected Likely

Wind Advisory

Wind Advisory issued June 9 at 11:07AM MST until June 9 at 8:00PM MST by NWS Flagstaff AZ
Jun 9, 12:07 PM Jun 9, 9:00 PM
WHAT: Southwest winds 20 to 30 mph with gusts up to 45 mph.

WHERE: Black Mesa, Chuska Mountains, and Defiance Plateau, Little
Colorado River Valley, Painted Desert, Chinle Valley, and Western
Mogollon Rim.

WHEN: Until 8 PM MST /9 PM MDT/ this evening.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could snap resulting in a few power outages. Travel will be
difficult, especially for high profile vehicles.
+ Read More
Winds this strong can make driving difficult, especially for high profile vehicles, such as RVs, campers, and tractor trailers. Use extra caution. Secure loose outdoor objects that could be blown around or damaged by the wind.
Updated: Jun 9, 5:04 PM Source: NWS Alert